Property Plant and Equipment Property Plant and Equipment

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment Disclosure

jor classes of property, plant and equipment

(Millions of Dollars)	Dec. 31, 2019			Dec. 31, 2018
Property, plant and equipment
Electric plant	$	3,024.6		$	2,895.5
Natural gas plant	365.5			345.7
Common and other property	201.5			189.7
CWIP	82.8			55.0
Total property, plant and equipment	3,674.4			3,485.9
Less accumulated depreciation	(1,315.0		)	(1,244.3		)
Property, plant and equipment, net	$	2,359.4		$	2,241.6

Joint Ownership of Transmission Facilities

Jointly owned assets as of Dec. 31, 2019:

(Millions of Dollars)	Plant in Service		Accumulated Depreciation		CWIP		Percent Owned
Electric transmission:
La Crosse, WI to Madison, WI	$	187.0	$	7.0	$	—	37	%
CapX2020	168.7		18.8		0.3		80
Total	$	355.7	$	25.8	$	0.3

NSP-Wisconsin’s share of operating expenses and construction expenditures is included in the applicable utility accounts. Respective owners are responsible for providing their own financing.